Nevada School Shooting: Gunman was 12-years-old, parents could face charges, police say

(CBS) SPARKS, Nev. - Police say the student who opened fire at Sparks Middle School in Nevada, injuring two classmates and taking the life of an 8th grade math teacher before killing himself, was 12-years-old, reports CBS affiliate KTVN.

According to the station, authorities say the parents of the 12-year-old, who was a 7th grader at the school, are cooperating with authorities and could face charges in the case.

Authorities also announced Tuesday that they had finished processing the crime scene and officially identified the slain teacher as Michael Landsberry.

Police withheld the name of the shooter. They said he used a Ruger 9mm which they believe he got from his parents. Work is still being done to trace the origin of gun, reports the station.

The student shot a fellow student in the shoulder at around 7:15 a.m. Monday, then walked towards Landsberry and shot him in the chest before shooting another student in the stomach and then turning the gun on himself, authorities say.

The 45-year-old Landsberry, who began teaching at Sparks Middle School in 2006, served two tours of duty in Afghanistan with the Nevada National Guard and was well known in the school community, Sparks Mayor Geno Martini has said. Landsberry is being hailed a hero for trying to protect students during the shooting.

At least one witness to the shooting has pointed to revenge being a possible motive, CBS This Morning reported.

"He pointed to us and he said, 'You ruined my life and now I'm going to ruin yours,'" said Alfrancis de Vera, a student at Sparks Middle School.

The school will remain closed for the rest of the week.

Complete coverage of the shooting at Sparks Middle School on Crimesider